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Edit this profileWhere to find Mark C. Sullivan, PA-C
- Portsmouth location main office
333 Borthwick Avenue, Suite 402, Portsmouth, NH 03801 - Portsmouth location
333 Borthwick Ave, Suite 402, Portsmouth, NH 03801
About Mark Sullivan
Mark C. Sullivan, PA-C is a physician assistant — surgical practicing in Portsmouth, NH. According to Medicare claims data, Mark cared for 38 Medicare patients across 40 services. The services billed most often include subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes and initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes. This provider record is associated with NPI 1225075328.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (603) 559-4111
- Email not available
Practice Locations
333 BORTHWICK AVENUE SUITE 402
Portsmouth, NH 03801
333 Borthwick Ave SUITE 402
Portsmouth, NH 03801
Conditions and Services Within This Provider's Scope
Within Physician Assistant - Surgical generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Abdominal & digestive
- Acid reflux
- Anal fissure
- Appendicitis
- Bowel obstruction
- Diverticulitis
- Gallstones
- Hemorrhoids
- Hernia
Bariatrics
- Severe Obesity
Bones & joints
- Bone fractures
- Bunions
- Ganglion Cyst In Hand Or Wrist
- Hip osteoarthritis
- Knee osteoarthritis
- Rotator cuff tear
- Shoulder impingement
- Torn ACL
- Torn meniscus
- Trigger finger
Breast Surgery
- Breast lump or mass
Cosmetic & Plastic
Cosmetic & plastics
Endocrine Surgery
ENT Surgery
- Deviated septum
General Surgery
Glands & hormones
Nerves & spine
Skin
Skin & soft tissue
- Benign breast disease
- Epidermoid cyst
- Ingrown toenail
- Keloids and hypertrophic scars
- Pilonidal cyst
- Skin abscess or boil
- Skin cancer
Spine & Orthopedics
- Baker's Cyst
- Cervical spondylosis
- Heel pain
- Shoulder Labrum Tear
- Spinal stenosis
- Spondylolisthesis
- Tennis elbow
- Torn Achilles tendon
Urinary
Urology Surgery
- Hydrocele
Vascular Surgery
Veins & circulation
Wound Care
- Surgical wound opening
Wounds & recovery
Procedures & services
Bariatrics
- Weight Loss Surgery Consultation
Breast Surgery
- Breast biopsy
- Breast Cancer Surgery Consultation
Cosmetic & Plastic
- Breast Reduction Consultation
Cosmetic & plastics
- Botox injections
- Dermal filler injections
- Scar revision consultation
- Tummy tuck consultation
Endocrine Surgery
- Thyroid Surgery Consultation
General surgery
- Gallbladder surgery consultation
- Hemorrhoid banding and treatment
- Hernia repair consultation
General Surgery
Injections & pain
- Joint injection or aspiration
- Knee Joint Injection
- Tendon Sheath Injection
Nerves & spine
- Spine surgery consultation
Orthopedics
- ACL reconstruction consultation
- Carpal tunnel surgery consultation
- Cast placement and management
- Hip replacement consultation
- Knee replacement consultation
- Torn rotator cuff consultation
Post-Op Care
- Cast Removal
- Seroma Fluid Drainage
- Surgical Staple Removal
Skin & minor surgery
- Cryotherapy for skin lesions
- Incision and drainage of an abscess
- Jaw Cyst Removal
- Minor laceration repair
- Pilonidal cyst removal
- Removal of a soft-tissue mass
- Skin biopsy
- Superficial foreign-body removal
- Toenail Removal
Skin Procedures
- Cyst Drainage
- Mole removal
- Skin Tag Removal
- Wart Removal
Spine & Orthopedics
- Bunion Surgery Consultation
- Foot and Ankle Surgery Consultation
- Shoulder Surgery Consultation
- Splinting of minor injuries
- Surgical Hardware Removal Consultation
- Trigger Finger Release Consultation
Surgical care
- Post-Surgery Follow-Up
- Pre-surgery clearance
Veins & circulation
- Vein treatment consultation
Wound Care
- Surgical Scar Treatment
Wounds & recovery
- Negative pressure wound therapy
- Surgical drain removal
- Surgical Wound Care
- Suture removal
- Wound cleaning and dead tissue removal
Procedures Most Often Billed to Medicare
40 services · 38 patients · 2 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
29 | As often as other peers in Physician Assistant — Surgical |
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | Office visit | 99222 |
11 | Less often than most peers in Physician Assistant — Surgical |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other physician assistants at this location 2
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 4
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 22 related providers in 3 groups
Other physician assistants in Portsmouth 6
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 1992 at Other 8
Providers who graduated from the same medical school in the same year.
Common questions
What kind of doctor is Mark C. Sullivan?
Mark C. Sullivan is a physician assistant in Portsmouth, NH. That is the designation recorded for this NPI in the federal registry, where it is listed as “Physician Assistant — Surgical”.
NPI registry
What is Mark C. Sullivan's address?
Mark C. Sullivan is listed at 333 Borthwick Avenue Suite 402, Portsmouth, NH 03801. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Mark C. Sullivan?
The number on file is (603) 559-4111. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Mark C. Sullivan's NPI number?
Mark C. Sullivan's National Provider Identifier is 1225075328. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Mark C. Sullivan train?
Mark C. Sullivan attended Other, graduating in 1992. This comes from the CMS National Downloadable File.
CMS public data
How long has Mark C. Sullivan been practicing?
Mark C. Sullivan has 34 years experience. Calculated from a graduation year of 1992, reported in the CMS National Downloadable File.
CMS public data
What procedures does Mark C. Sullivan perform?
According to Medicare billing data, Mark C. Sullivan the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Mark C. Sullivan confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Mark C. Sullivan. If this is you, claiming it is free.
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